Re: Replace corrupt journal

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Ok sorry for spamming.

 

I got it fixed and I figured I better share what I did wrong.

 

I reused my logical volume and using the same size as before and then it just kept the old journal (this is what I guess I guess). I changed the size of my logical volume and now it is working.

 

(I change to using private email, this is not really something work related=

 

Cheers,

Claes

 

From: Sahlstrom, Claes
Sent: den 11 januari 2015 16:43
To: 'ceph-users@xxxxxxxx'
Subject: RE: Replace corrupt journal

 

I should probably add that I have tried to use –mkjournal

In my case “ceph-osd -i 5 --mkjournal” and I thought that would be the magic I needed.

 

 

From: Sahlstrom, Claes
Sent: den 11 januari 2015 16:22
To: 'ceph-users@xxxxxxxx'
Subject: Replace corrupt journal

 

Hi,

 

I have a problem starting a couple of OSDs because of the journal being corrupt. Is there any way to replace the journal and keeping the rest of the OSD intact.

 

    -1> 2015-01-11 16:02:54.475138 7fb32df86900 -1 journal Unable to read past sequence 8188178 but header indicates the journal has committed up through 8188206, journal is corrupt

     0> 2015-01-11 16:02:54.479296 7fb32df86900 -1 os/FileJournal.cc: In function 'bool FileJournal::read_entry(ceph::bufferlist&, uint64_t&, bool*)' thread 7fb32df86900 time 2015-01-11 16:02:54.475276

os/FileJournal.cc: 1693: FAILED assert(0)

 

I ended up in this situation when osd.9 on host “orange” went down, and then I had a powerfailure on the host “purple” which made 2 of my journals corrupt.

-3      6               host purple

4       1                       osd.4   up      1

5       1                       osd.5   down    0

7       2                       osd.7   down    0

6       2                       osd.6   up      1

-4      6               host orange

8       1                       osd.8   up      1

9       1                       osd.9   down    0

 

The filesystem was not in use by users, but it was replicating when the host went down and I figure that I still have the data on the OSD-disks, they are still mountable and the XFS-filesystem on them seems to be intact.

 

Thanks,

Claes

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